Rotatable pump-valve.



' H. H. RILEY. ROTATABLB PUMP VALVE. APPLICATION FILED IEIL7, 1911.-

Patented Oct. 15, 1912.

to rotate the valve stem in UNITED STATES PATENT OFFICE.

HUGH H. RILEY, OF MEMPHIS, TENNESSEE.

ROTATABLE PUMP-VALVE.

Specification of Letters Patent.

Patented 0ct.15,1912.

Application filed February 7, 1911. Serial No. 607,041."

To all whom it may concern:-

Be it known that I, HUGH H. RILEY, a citizen of the United States, residing at Memphis, in the county of Shelby and State of Tennessee, have invented new and useful Improvements in Itotatable Pump-Valves, of which the following is a specification.

This invention relates to valves and more particularly to rotatable pump valves.

The object of the invention is the pro- .vision of a pump valve disk and stem which will be rotated upon each reciprocation so as to automatically grind the disk to the scat, whereby a perfectly These valves are primarily adapted for what is known as doctor pumps, these pumps being used exclusively on steamboats used on the western rivers. Valves having this purpose in view have been heretofore designed but have been practically inoperative owing to the fact that the rotating vanes which have been provided have been positioned in such close proximity to the valve disk that the water, after passing beyond the disk, had practically'no effect upon the vanes to rotate the stem, and therefore there is only a slight movement of the valve in either direction as it was raised from its seat or when it took its seat after the first movement.

It is the object of this invention to avoid these difficulties and to provide rotating means so separated from'the valve disk that the water will have a positive action thereon both directions of its movement and thereby seat the valve with a rotary movement so as to. displace any particles of grit which may rest thereon and as this is extremely common in the muddy rivers of the West it can be readily seen that the improvement is a distinct one.

Further objects of the invention will ap pear as the following specific description is read in connection with the accompanying drawings, which form a part of this application, and in which Figure 1 is a longitudinal section through a valve casing showing the valve disk and stem in position therein. Fig. 2 is a horizontal section on the line 2-2 of Fig. 1. Fig. 3 is a detail vertical elevation, partly in section, of a modification.

Referring more particularly to the draw tight joint is formed to the'entire length ings, 1 represents -a valve casing which is provided with the usual partition 2 extend ing thereacross and having a valve seat 3 formed therein. The valve stem is indicated at 4 and formed integrally thereon is a valve disk 5 having a beveled under face 6 adapted to rest upon the seat 3.

Immediately aboye the valve disk 5 there is formed integral with the stem 4 a plurality of spirally arranged vanes 7 which are separated from thevalve disk by a-considerable space so as to permit the water to have proper circulation and to gain access of the blades, whereby further action is obtained and the 'stem properly rotated.

In the modification shown in Fig. 3, the old valve stem and disk is shown at 8 and 9 and the attachment thereto, which comprises the additional stem 10, is shown as supplied with vanes 11 and a longitudinal socket in its end to receive the reduced extension 12 above the disk which enters the socket and is held in place by a set screw 13. In this instance the space is also left between the vanes and the disk for the purpose above described.

Having thus described the invention, what I claim as new is In combination, a conduit having a valve seat therein, a bearing located below said valve seat, a valve stem extending through the bearing and valve seat, a valve mounted. on said stem and adapted to engage the seat, the upper end of said stem being reduced, a second stem section having a socketto receive the reduced end of the first stem section and having curved vanes spaced above said valve and having their outer edges disposed in the same vertical plane as the outer periphery of the valve and spaced from the cylinder wall, means connecting the two valve stem sections, said vanes being adapted to rotate said valve stem and valve when said valve is reciprocated.

In testimony whereof I aflix my signature in presence of two witnesses.

HUGH H. RILEY.

W'itnesses THOS. J. NOONAN, JOHN E. CoLnERT. 

